When ortho-hydrogen and para-hydrogen are in exact equilibrium state, the rotational partition function of hydrogen is Z~(r?n)=34Z~(r)_(o)+14Z~(r)_(p),and when hydrogen is non-equilibrium mixture of ortho-hydrogen and para-hydrogen, then the rotational partition function of hydrogen molecule is Z~(r?n)_(混)=Z~(r)_(o)~(N_(o)/N)·(Z~(r)_(p))~(N_(p)/N).
当正氢和仲氢处于完全平衡态时,分子的转动配分函数为Zrn=34Zro+14Zrp;当氢气为正氢和仲氢的非平衡混合物时,分子的转动配分函数为Zrn混=(Zro)No/N(Zrp)Np/N。
Interatomic Distances of Molecule for Orthohydrogen and Parahydrogen;
正氢和仲氢分子的核间距
By using light scattering technique, the transition of rotating energy levels from hydrogen molecular occurs and produced rotating Raman bands for orthohydrogen and parahydrogen are at 587.
采用光散射技术，促使氢分子产生转动跃迁，得到正氢和仲氢的转动拉曼光谱，其峰位为５８７。
The injection control strategy was put forward after analyzing the influence of hydrogen injection timing and hydrogen injection quantity on the working performance of hydrogen-fueled engine.
在分析喷氢正时和喷氢量对氢发动机工作性能影响的基础上,提出了根据发动机运行工况实时调节和修正喷氢参数的优化控制策略,并基于Pareto秩与决策偏好相结合的全自动标定算法,进行了喷氢提前角和喷氢脉宽电控系统的设计。